Where did the letter "J" come from?

Do you ever wonder about the words we use, even the alphabet we use? Did you know that the Romans only had 24 letters, but the alphabet later expanded to 26 letters?

One of the "new" letters was the letter "J." Where did it come from. Check this out, from Dictionary.com.

"Why is one man primarily responsible for the existence of the letter 'J,' and what letter did it split off from?"
http://hotword.dictionary.com/j/

Along these lines, did you ever wonder why the letter "W" is called a "double-u" when it's written as a "double-v"? Why a "Q" is almost invariably followed by the letter "U"? Follow the links in the above article, just keep surfing, to find out!